thomas and mokgan jsmanuel



'in Blasting Gompoundspand we water,

WM. R. THGMAS AND MORGAN EMANUEL, JR, OF CATASAUQUA, PA.

iMPRQVE. BLASTlNG -PGWDER.

Specification forming part of Letters Patent No. 31,854, dated March 11, 1862.

I To all whom it may concern:

Be it known that we, Wilt. THOMAS and M EMANUEL, Jn, both of Gatasauqua, in the county of Lehigh and State of ?eunsyivnnia, have invented a new and useful improvement do hereby declare that the followiugjis a full, clear, and exact description of the some.

This invention relates to an improvement in the blasting compound for which we obtained Letters Patent dated April 9, 1861. That compound was composed of nitrate of soda, sulphur, and ground hark, worked up together into a paste by the aid of a suitable quantity of and afterward dried, We'harefound by subsequent experiment that hy'the addition of a certain quantity of 'chlorate of potash the qualily of the compound is much improved,

' inasmuch as by the supply of iidditional oxygen it makes it burn quicker and increases its strength; and this invention consists in-a oompound made of nitrate of soda, sulphur, ground bark, and chlorate of potash.

The proportions of the several ingredients and mode of preparing the compound are as I follows: Take of nitrate of soda, three and a half (3%) pounds; flowers of sulphur, one and a quarter (1i) pound; ground bark,"four and a half (4g) pounds; chlorate of potash, two

changing (2) pounds; water, three (3) quarts. Heat the water to the boiling-point and dissolve therein the nitrate of soda and the chlorate of potash. While this solution is hot introduce the bark and stir till the latteris perfectly saturated, and then add the sulphur and stir till the whole is well mixed, after which the compound only requires to be well dried to make it ready for use.

We will remark that the proportions of the several ingredients of the compound may he varied to some extent without materially the character or efficiency of the compound but the proportions we have stated are those which after repeated experiment we have found tube the host;

The compound is used in blasting in the same manner as ordinary blasting-powder.

What we claim as our invention, and desire to secure by Letters Patent, is-- The blasting compound made of nitrate of soda, sulphur, ground bark, and chlorate of potash, in the manner substantially as and in shout the proportions herein set forth.

WlLLiAM R. THUMAS.

MORGAN EMANUEL,JR. Witnesses:

DAME-L MILSON, UHASD OonwIN. 

